Okay, so it is a functional webserver. It works about as well as you could expect for what it is.
However, the SE/30 can make an excellent webserver if you ask me. It can serve HTTP, FTP (download), POP3, SMTP, and DNS all on 16MHz and 16mb of RAM and still have memory to spare.
Now, it would get bogged down with more than probably 15 or so connections at any one time, but it is just a matter "taking a ticket and waiting in line" Macs are kind of funny like that. They may be slow (and act like they are stuck) but 90+% of the time, they do reach the end of whatever they were working on successfully without crashing.
The cool thing about these Macs (even 8Mhz 4mb RAM ones) is that I can print to a color laser printer over ethernet, and share files, programs, and even whole drives between them over an ethernet network. I'd say that's impressive considering they are almost 15 years old. I can post on ChiefDelphi from one too! But I do need a 68030 (or maybe a 68020 will do) processor for that though (to run MS Internet Explorer 2.1)